<template>
  <view>
     <!-- 最外层的容器 -->
      <view class="my-settle-container">
       <!-- 全选区域 -->
         <label class="radio" @click="changeAllState">
           <radio color="#C00000" :checked="isFullCheck" /><text>全选</text>
         </label>
       
         <!-- 合计区域 -->
         <view class="amount-box">
           合计:<text class="amount">￥{{checkedGoodsAmount}}</text>
         </view>
       
         <!-- 结算按钮 -->
         <view class="btn-settle">结算({{checkedCount}})</view>
      </view>
  </view>
</template>

<script>
  import { mapGetters , mapMutations } from 'vuex'
  export default {
    name:"my-settle",
    data() {
      return {
        
      };
    },
    computed: {
        ...mapGetters('m_cart', ['checkedCount','total' , 'checkedGoodsAmount']),
        isFullCheck() {
              return this.total === this.checkedCount
            },
      },
      methods: {
          // 2. 使用 mapMutations 辅助函数，把 m_cart 模块提供的 updateAllGoodsState 方法映射到当前组件中使用
          ...mapMutations('m_cart', ['updateAllGoodsState']),
          changeAllState() {
              // 修改购物车中所有商品的选中状态
              // !this.isFullCheck 表示：当前全选按钮的状态取反之后，就是最新的勾选状态
              this.updateAllGoodsState(!this.isFullCheck)
            }
        },
  }
</script>

<style lang="scss">
.my-settle-container {
  /* 底部固定定位 */
  position: fixed;
  bottom: 0;
  left: 0;
  /* 设置宽高和背景色 */
  width: 100%;
  height: 50px;
  background-color: cyan;
  // 将背景色从 cyan 改为 white
    background-color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-left: 5px;
    font-size: 14px;
}
 .radio {
    display: flex;
    align-items: center;
  }
  .amount-box{
    .amount {
        color: #c00000;
        font-weight:bold;
      }
  }
     .btn-settle {
        height: 50px;
        min-width: 100px;
        background-color: #c00000;
        color: white;
        line-height: 50px;
        text-align: center;
        padding: 0 10px;
      }
</style>